nucl-th papers | Gist.Science

Nuclear theory sits at the fascinating intersection of particle physics and the forces that hold our universe together. This field explores how protons and neutrons bind inside atomic nuclei, seeking to understand the fundamental interactions that govern matter at its most dense and energetic levels. While the mathematics involved can be incredibly complex, the core questions are deeply human: how does the universe function at its smallest scales, and what happens when we push matter to its limits?

At Gist.Science, we make these cutting-edge discoveries accessible by processing every new preprint published in this category on arXiv. Our team transforms dense academic manuscripts into clear, plain-language summaries alongside detailed technical overviews, ensuring that both experts and curious readers can grasp the latest breakthroughs without getting lost in the jargon. Below are the latest papers in nuclear theory, distilled and ready for you to explore.

⚛️ nuclear theory

Analytical penetration probability including the centrifugal potential: An improved Buck--Merchant--Perez model for alpha-decay half-lives

This paper presents an improved Buck--Merchant--Perez model for alpha-decay half-lives that incorporates a closed-form WKB formula with centrifugal potential and a unified four-parameter nuclear potential, achieving a 57% reduction in root-mean-square deviation across 534 decays and providing predictions for superheavy nuclei in the Z = 117--120 region.

Minghui Hu, Pengfei Ma, Kai Ren, Junlong Tian, Cheng Li2026-07-15

⚛️ nuclear theory

Harmonic-dependent geometry-to-flow transfer in AMPT Ru+Ru and Zr+Zr isobar collisions

This study utilizes fixed-participant-number AMPT simulations to demonstrate that while elliptic flow in Ru+Ru and Zr+Zr isobar collisions scales accurately with initial geometric eccentricity, triangular flow exhibits a distinct harmonic-dependent response that retains a residual component beyond the initial geometry ratio.

Murad Badshah, Muhammad Ajaz2026-07-15

⚛️ nuclear theory

Two-fluid $f$ -mode oscillations of dark-matter-admixed neutron stars

This study investigates quadrupolar $f$ -mode oscillations of dark-matter-admixed neutron stars in full general relativity, revealing that intermediate dark matter fractions can induce a weakly radiating oscillation branch with significantly enhanced damping times, thereby refining previous models by incorporating metric perturbations and radiative boundary conditions.

Zi-Yue Zheng, Ting-Ting Sun, Huan Chen, Xiao-Ping Zheng, Jin-Biao Wei, G. F. Burgio, H. -J. Schulze2026-07-15

⚛️ nuclear theory

Thermal conductivity of dense $np\Lambda$ matter in neutron star cores

Using a variational linearized Boltzmann kinetic approach with the DDME2 equation of state, this study demonstrates that while neutrons dominate thermal transport in dense $np\Lambda$ matter, the onset of $\Lambda$ hyperons causes only a negligible reduction in conductivity, leaving the core thermal relaxation timescale practically unaltered.

Tanay Choudhary, Athira S., Monika Sinha2026-07-15

⚛️ lattice

Hadronic vacuum polarization contribution to $a_\mu$ from functional methods with strong and electromagnetic isospin breaking

This paper presents a continuum-QCD calculation of the leading-order hadronic vacuum polarization contribution to the muon's anomalous magnetic moment using Dyson-Schwinger and Bethe-Salpeter equations, incorporating strong and electromagnetic isospin breaking to yield a result of $(710.0 \pm 14.5) \times 10^{-10}$ that aligns well with recent lattice-QCD determinations.

Angel S. Miramontes, Adnan Bashir, Christian S. Fischer, Pablo Roig2026-07-15

⚛️ nuclear theory

Absence of a shell closure in $^{140}$ Sn

Using ab initio computations with chiral effective field theory interactions, this study resolves the controversy regarding $^{140}$ Sn by demonstrating that its low first excited $2^+$ energy contradicts the assumption of a closed neutron subshell, thereby indicating the absence of a shell closure in this nucleus.

Francesca Bonaiti, Bingcheng He, Gaute Hagen, Thomas Papenbrock2026-07-14

⚛️ nuclear theory

Causality and Stability of First-Order Relativistic Spin Hydrodynamics with Conserved Charges

This paper demonstrates that incorporating particle-number conservation into first-order relativistic spin hydrodynamics introduces new non-hydrodynamic modes and modifies stability conditions, yet fails to resolve the theory's inherent causality violations and instabilities.

Wei Lu, Yang Zhong, Sheng-Qin Feng2026-07-14

⚛️ nuclear theory

Strongly interacting matter with criticality induced by modified excluded volume in core-collapse supernova simulations

This paper develops a novel modified excluded volume equation of state that incorporates a first-order phase transition with a critical point to simulate core-collapse supernovae, revealing a distinct, burst-like neutrino signature and gravitational wave modes that differ from those predicted by traditional hybrid hadron-quark models.

Anil Kumar, Noshad Khosravi Largani, Stefan Typel, Pablo Cerdá-Durán, Alejandro Torres-Forné, Tobias Fischer2026-07-14

⚛️ nuclear theory

Emulating Density Functional Theory Calculations via Empirical Interpolation

This paper demonstrates that the Empirical Interpolation Method (EIM) can effectively emulate Nuclear Density Functional Theory calculations for ground-state and fission properties with high precision, achieving an order-of-magnitude speedup that enables feasible statistical uncertainty quantification for nuclei across the chart.

Daniel Lay, Pablo Giuliani, Kyle Godbey2026-07-14

⚛️ nuclear theory

From hyperon--nucleon interactions to deuteron--hyperon femtoscopy

This paper investigates low-energy scattering and femtoscopic correlations of deuteron--hyperon systems using a microscopic folding approach based on HAL-QCD potentials, predicting no bound states but significant momentum enhancements for specific channels and demonstrating that feed-down decays substantially modify observable correlations.

Jiaxing Zhao2026-07-14

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nucl-th

Analytical penetration probability including the centrifugal potential: An improved Buck--Merchant--Perez model for alpha-decay half-lives

Harmonic-dependent geometry-to-flow transfer in AMPT Ru+Ru and Zr+Zr isobar collisions

Two-fluid fff-mode oscillations of dark-matter-admixed neutron stars

Thermal conductivity of dense npΛnp\LambdanpΛ matter in neutron star cores

Hadronic vacuum polarization contribution to aμa_\muaμ​ from functional methods with strong and electromagnetic isospin breaking

Absence of a shell closure in 140^{140}140Sn

Causality and Stability of First-Order Relativistic Spin Hydrodynamics with Conserved Charges

Strongly interacting matter with criticality induced by modified excluded volume in core-collapse supernova simulations

Emulating Density Functional Theory Calculations via Empirical Interpolation

From hyperon--nucleon interactions to deuteron--hyperon femtoscopy

Two-fluid $f$ -mode oscillations of dark-matter-admixed neutron stars

Thermal conductivity of dense $np\Lambda$ matter in neutron star cores

Hadronic vacuum polarization contribution to $a_\mu$ from functional methods with strong and electromagnetic isospin breaking

Absence of a shell closure in $^{140}$ Sn